Event: Morpeth Xmas Rapidplay

Opponent Rating Result
Charles Greer 1489 1 - 0
Andrew Hardy 1434 1 - 0
Roger H Coathup 2145 ½ - ½
C Mike Smyth 1987 1 - 0
Robert PC Mitcheson 1729 1 - 0
Phil Eastlake 1995 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1997 = (10779 + 400 * (4 - 1)) / 6)

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